Miljan, Merilin, and Virve Vihman. “A Corpus Study of Grammatical Case Forms in Written and Spoken Estonian: Frequency, Distribution and Grammatical Role”. Eesti ja soome-ugri keeleteaduse ajakiri. Journal of Estonian and Finno-Ugric Linguistics 14, no. 3 (October 17, 2023): 5–44. Accessed May 9, 2024. https://ojs.utlib.ee/index.php/jeful/article/view/18826.